事实
蠕动泵和 4 活塞隔膜泵是基于运转部件之间的机械接触,例如管道压缩或阀门相互作用。 运转部件之间的机械接触会导致颗粒物脱落,从而导致产品污染。Levitronix® 泵在运转部件之间没有机械接触。
测试条件
评估了 Levitronix® PuraLev®600SU 泵、4 活塞隔膜泵和蠕动泵的颗粒物脱落情况。 每个泵以 16 l/min 的流速和 1 bar 和 2.5 bar 的背压分别循环固定体积的超纯水。 在选定的时间测量颗粒物水平并进行比较。
结果
蠕动泵和 4 活塞隔膜泵所产生的颗粒物水平比 PuraLev® 600SU 泵高 2-3 个数量级。 无论操作条件如何, Levitronix®泵下游的颗粒物浓度都接近系统检测到的背景水平。
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